Yiwu is a small town in Mengla county of Xishuangbanna, famous for its ancient tea mountain. Pu-erh tea produced in this area has features of aroma and smooth taste. And this is also the place where "Old Tea Horse Road" starts. This Pu-erh cake is made of spring tea leaves picked from ancient Pu-erh tea tree in Yi Wu mountain. A classic product of Yi Wu ancient Pu-erh, suitable for collection.